Method of manufacturing leather-like material.



UNITED STATES PATE NT OFFICE.

ALBERT G. EMEBY, OF NEW YORK, N. Y., ASSIGNOR T0 RUBBER BEGEN'EBA-TING"COMPANY, A CORPORATION OF INDIANA.

METHOD 0F MANUFACTURING LEATHER-LIKE MATERIAL.

No Drawing.

To all whom it may concern:

Be itknown that I, ALBERT G. EMERY, a citizen of the United States,residing'at New York city, in the county and State of New York, haveinvented certain. new and useful Improvements in the Methods ofManufacturing Leather-Like Material, of which the following is a Full,clear, and exact description,

This invention relates to a metl'iod of treating woven, knitted orfelted fibrous materials. The object of this in; .ntion is to impart tosuch' materials leatl'ur-like qimlities such as increased stiffness andwear re sisting properties, without zi 'iprecinble loss of.flexibilityor power of absorption.

Material treated according to this invention is adapted to e greatdiversity of uses, among them the manufacture of soles for footwear. j

treatment may be applied to either woven, breided, knitted or feltedfibrous'mm teriahandl wish tobeunderstood. as not limiting'r'nyself toany one of the above. For most urposes, however,'I refer to use a felt,oil; or wool, cotton, or oth, and to avoid confusion, I shall, in thefollowing descri tion confine myself to the treutn'ient of fel it beingunderstood that my invention includes the treatment of any other form offibrous structure.

My method cdnsists essentially in the impregnation of'the felt or oth ormaterial with a composition of rosinated linseed oil and suitablefillers, and the subsequent oxidation of-the absorbed compound.

The composition which I have found most satisfactory for impregnatingfelt to be used formanufacturing insoles, is prepared substantially asfollows:

Boiled linseedoil of a. specific gravity-of .96, is further boiled. with5% of calcium rosinate containing 5% of lime. This boiling is continuedfor about two hours. at approximately 412 F., or until the oil isreduced to a semi-gelatinous state. To the rosinated oil as aboveprepared, I then'add suitable fillers and pigments. The filling materialand pigment and the proportions in which they are. added, variesaccordin to the use to which the finished materia is to be put and I donot limit myself to any proportions. A compound Specification of LettersPatent.

.in a slightly viscous con saturating the felt as with the Patented Dec.11, 1917.

Application filed July 14, 1916. Serial No. 109,221.

sfac'tory 100 parts of rosimtted oil 93 parts American-poker, 7 partsrediron-oXid. I

When the above cornpoundis thoiroughly ready for impregnation into theinpregnation maybe carried out s thatwhiol'i'l hays found my eoiisistingin. dissolving .1 flirts of the compound in 25 parts i 0 solvent, forinSteIfif/mgaSQl'I m:

i in the soliitionthus m: :i it 155 ii ironghly situretemfund i on itsren'loyu' "is pissed r ,oeoz-c rollers tor'e' any, su if-" plus...ineamount of material desired to he left in the felt variesslightlyfandcnn be regulated by" adjusting the tension. *ofitlie irollers through which itflis p Another method of impregnat gmatef rial,which I have fou'ndf f consists in heating the ini n gasolenc snutionshove mentioned. 1 p

The impregnated felt next subjected to an on'i'di' iss, that which-Ilidye found tory consisting in suh-' iecting it l l chamber to heat; f Uabout 209 F. for approximately twoli' 5B The shove degree of temperatureand period of time that which I have found to effect the degreeoxidetionbest suited for most of the uses to we icli the finishedmaterial. is to be put. In case greater hardness is '90 desired in thefinished article, this can be aoocnnplished by increasin the degree of;temperature, the period of time, or both.

The method of producing oxidation shove outlined is mentioned merely asone Way of accomplishing the desired result, which can be equally wellobtained in several other ways, among which might be mentioned theexposure of the article to air and light, or its exposure to ozone andultra-violet rags.

The material is preferably finishe by suitably bufling the surface on asand-paper roll, or the use ct -snapper. The est mention step givesuvelvety surface very similar to that of leather and may be omitted incase the use to-wluch the material 1'0 "heating pro erties which make itparticu- 'larllf' adapt gfor shoe insoles. v

, 'avin thus described my invention,

what I aim as 'new and desire' to protect Patent is: 4 v 1. The methodof manufacturing leatherlike material which consists in impregnatingfibrous material with acompound of lino il and metallic rosinate, 'andthen oxidizing the same. 3 2'. The method oi manufacturing'leatlierlikematerial which c nsists in immersiilg fibrous material in a com -o'undof linseed oil and metallic rosinate, t .eu remov" the surplus oiltherefrom, and finally oxidizing that. remaining in said fibrousmaterial.

3517M method "of manufatur'in" leathe like material which consists in Aa mixture of linseed oil and calcium rosinate until it assumes agelatinous consistency impregating the fibrous material with ,sa1drosinated 'o1l--andlfin'ally oxidizing the same. 4, The'method ofmanufacturing leatherlike-material which consists in boiling a mixtureofjlins'eed oil "and calcium rosinate until v :5 it assumes"a'gelatinous consistenc imfiiegnatingfibrous material with sairos'inated oil and suitable fillers, and finally oxidiiing the same. t

' 5. The method of manufacturing leatherlike material which consists inboiling a mixture' of linseed-oil and calcium r'osinate until it agelatinous consistency, comoil with American fibrous finally ocher andiron oxid, impregnatin mi compound of linseed oil and calcium rosinate;

'8. A leather-like material comprisinga .65 fibrous body impregnatedwith an oxidized compound consisting of linseed 'oil and a metallicrosinate, American ocher, and red iron oxid.

' 9. The method of manufacturing leatherlike material which consists inim regnating fibrous material with a compoun of linseed oil, metallicrosinate and an alkali, and then oxidizing the same. 4

10. The method of manufacturing leatherlike material which consists inimpregnating fibrous" material with a compound oflinseed oil, a metallicrosinate and'lime, and then oxidizing thesame.

11. The method of'manufacturing leatherlike material which consists inimpregnatin fibrous material with a mixture of linsee oil and metallicrosinate, then oxidizing the same, and finally mechanically treatin theexterior of the'material to produceae v'ety 7 5 surface.

12. The methodof manufacturing leatherlike material which consists inimpregnating fibrous material with a solution of linseed oiland ametallic rosinate, evaporating the solvent from the material, and thenoxidizin the same.

i ned at New York, N. Y., this 10th day of ay, 1916.

ALBERT G. EMERY.

